How Did They Build That? U-ground Spaces
MilkandCookies.com (Free subscription) | 30/09/2008
A journey into some of the world's largest underground spaces, including a potash mine in Yorkshire, a rock cavern in Norway and an underground station in London. First, we visit the deepest mine in western Europe. Boulby potash mine is situated on the north Yorkshire coast, approximately 1km deep into the Earth's crust and 8kms out into the North Sea. Next, we travel to Norway where we see the world's...
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